This all started innocently enough as I was trying to calculate how much intake head flow I needed for a 350 at 6500 rpm. So, 350/8 to get cylinder volume, (43.75 cu in); convert to cubic feet, ( .02531829 cu ft); and multiply by half of the rpm in question since the cylinder only draws in air every other stroke. That equals 82 cfm. That seemed wrong so I did it again and then realized that there was fuel in the air as well. sigh... Well, I used the Stoichiometric value for fuel and a density mark of 75 degrees f to end up with an answer, that again, was confusing. I then realized duration was in effect as well and lift. I figured out the average duration based on a comp 276 roller and then quit when I realized I could just ask you guys.
What flow head flow numbers support a 350 at 6500rpm? Is it proportional when looking at a 383 or 406? Is intake flow more important than exhaust? I know this is all going to be relative to the cam, carb, heads, exhaust and intake playing well together; I'm just confused...
- Rob
What flow head flow numbers support a 350 at 6500rpm? Is it proportional when looking at a 383 or 406? Is intake flow more important than exhaust? I know this is all going to be relative to the cam, carb, heads, exhaust and intake playing well together; I'm just confused...
- Rob
